The Differential Assembly History of the Centers and Outskirts of Main-sequence Galaxies at z ∼ 2.3
We present a study of spatially resolved star formation histories (SFHs) for 60 z ∼ 2.3 main-sequence, star-forming galaxies selected from the MOSDEF spectroscopic survey in the GOODS-N field, with median stellar mass log ( M ⋆ / M ⊙ ) = 9.75 and spanning the range 8.6 < log ( M ⋆ / M ⊙ ) < 11...
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| Veröffentlicht in: | The Astrophysical journal 2023-03, Vol.945 (2), p.97 |
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| creator | Cutler, Sam E. Giavalisco, Mauro Ji, Zhiyuan Cheng, Yingjie |
| description | We present a study of spatially resolved star formation histories (SFHs) for 60
z
∼ 2.3 main-sequence, star-forming galaxies selected from the MOSDEF spectroscopic survey in the GOODS-N field, with median stellar mass
log
(
M
⋆
/
M
⊙
)
= 9.75 and spanning the range
8.6
<
log
(
M
⋆
/
M
⊙
)
<
11.5
. Photometry is decomposed into a central and an outer spatial component using observed
z
F850LP
−
H
F160W
colors. The
Prospector
code is used to model spectral energy distributions for the center, outskirt, and integrated galaxy using Hubble Space Telescope/ACS and WFC3, Spitzer/IRAC, and ground-based photometry, with additional constraints on gas-phase metallicity and spectroscopic redshift from MOSDEF spectroscopy. For the low-resolution bands, spatially resolved photometry is determined with an iterative approach. The reconstructed SFHs indicate that the majority of galaxies with
log
(
M
⋆
/
M
⊙
)
<
10.5
are observed while their central regions undergo relatively recent ( |
| doi_str_mv | 10.3847/1538-4357/acb5e9 |
| format | Article |
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z
∼ 2.3 main-sequence, star-forming galaxies selected from the MOSDEF spectroscopic survey in the GOODS-N field, with median stellar mass
log
(
M
⋆
/
M
⊙
)
= 9.75 and spanning the range
8.6
<
log
(
M
⋆
/
M
⊙
)
<
11.5
. Photometry is decomposed into a central and an outer spatial component using observed
z
F850LP
−
H
F160W
colors. The
Prospector
code is used to model spectral energy distributions for the center, outskirt, and integrated galaxy using Hubble Space Telescope/ACS and WFC3, Spitzer/IRAC, and ground-based photometry, with additional constraints on gas-phase metallicity and spectroscopic redshift from MOSDEF spectroscopy. For the low-resolution bands, spatially resolved photometry is determined with an iterative approach. The reconstructed SFHs indicate that the majority of galaxies with
log
(
M
⋆
/
M
⊙
)
<
10.5
are observed while their central regions undergo relatively recent (<100 Myr) bursts of star formation, whereas the outskirts have a smooth, quasi-steady SFH that gently increases toward the redshift of observation. The enhanced star formation activity of the central parts is broadly consistent with the idea that it is produced by highly dissipative gas compaction and accretion. The wide range of central densities and sizes observed in the sample suggests that, for the selected galaxies, such a process has started but is still far from being completed. The implication would be that selecting star-forming galaxies at cosmic noon frequently includes systems in an “evolved” evolutionary phase where the centers have recently started a burst of star formation activity that will likely initiate inside-out quenching in the next several hundred million years.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.3847/1538-4357/acb5e9</identifier><language>eng</language><publisher>Philadelphia: The American Astronomical Society</publisher><subject>Astrophysics ; Deposition ; Galaxies ; Galaxy evolution ; Galaxy formation ; Hubble Space Telescope ; Iterative methods ; Metallicity ; Photometry ; Red shift ; Space telescopes ; Spectral energy distribution ; Spectroscopy ; Star & galaxy formation ; Star formation ; Stars ; Stars & galaxies ; Stellar mass</subject><ispartof>The Astrophysical journal, 2023-03, Vol.945 (2), p.97</ispartof><rights>2023. The Author(s). Published by the American Astronomical Society.</rights><rights>2023. The Author(s). Published by the American Astronomical Society. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3319-3dcc4c5697ffed95e0d199dc0e3f6d017d142d3809108843d30b77c18b1ebd7d3</citedby><cites>FETCH-LOGICAL-c3319-3dcc4c5697ffed95e0d199dc0e3f6d017d142d3809108843d30b77c18b1ebd7d3</cites><orcidid>0000-0002-7831-8751 ; 0000-0001-7673-2257 ; 0000-0001-8551-071X ; 0000-0002-7031-2865</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.3847/1538-4357/acb5e9/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>315,781,785,865,2103,27929,27930,38895,53872</link.rule.ids></links><search><creatorcontrib>Cutler, Sam E.</creatorcontrib><creatorcontrib>Giavalisco, Mauro</creatorcontrib><creatorcontrib>Ji, Zhiyuan</creatorcontrib><creatorcontrib>Cheng, Yingjie</creatorcontrib><title>The Differential Assembly History of the Centers and Outskirts of Main-sequence Galaxies at z ∼ 2.3</title><title>The Astrophysical journal</title><addtitle>APJ</addtitle><addtitle>Astrophys. J</addtitle><description>We present a study of spatially resolved star formation histories (SFHs) for 60
z
∼ 2.3 main-sequence, star-forming galaxies selected from the MOSDEF spectroscopic survey in the GOODS-N field, with median stellar mass
log
(
M
⋆
/
M
⊙
)
= 9.75 and spanning the range
8.6
<
log
(
M
⋆
/
M
⊙
)
<
11.5
. Photometry is decomposed into a central and an outer spatial component using observed
z
F850LP
−
H
F160W
colors. The
Prospector
code is used to model spectral energy distributions for the center, outskirt, and integrated galaxy using Hubble Space Telescope/ACS and WFC3, Spitzer/IRAC, and ground-based photometry, with additional constraints on gas-phase metallicity and spectroscopic redshift from MOSDEF spectroscopy. For the low-resolution bands, spatially resolved photometry is determined with an iterative approach. The reconstructed SFHs indicate that the majority of galaxies with
log
(
M
⋆
/
M
⊙
)
<
10.5
are observed while their central regions undergo relatively recent (<100 Myr) bursts of star formation, whereas the outskirts have a smooth, quasi-steady SFH that gently increases toward the redshift of observation. The enhanced star formation activity of the central parts is broadly consistent with the idea that it is produced by highly dissipative gas compaction and accretion. The wide range of central densities and sizes observed in the sample suggests that, for the selected galaxies, such a process has started but is still far from being completed. The implication would be that selecting star-forming galaxies at cosmic noon frequently includes systems in an “evolved” evolutionary phase where the centers have recently started a burst of star formation activity that will likely initiate inside-out quenching in the next several hundred million years.</description><subject>Astrophysics</subject><subject>Deposition</subject><subject>Galaxies</subject><subject>Galaxy evolution</subject><subject>Galaxy formation</subject><subject>Hubble Space Telescope</subject><subject>Iterative methods</subject><subject>Metallicity</subject><subject>Photometry</subject><subject>Red shift</subject><subject>Space telescopes</subject><subject>Spectral energy distribution</subject><subject>Spectroscopy</subject><subject>Star & galaxy formation</subject><subject>Star formation</subject><subject>Stars</subject><subject>Stars & galaxies</subject><subject>Stellar mass</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>DOA</sourceid><recordid>eNp1kcFO3DAQhq2qlbql3Dla4trAOHbi-IgWyq5ExQUkbpZjj8FLiLd2VuryBDwUT8OTNGkqeuppNDPf_DOjn5AjBie8EfKUVbwpBK_kqbFtheoDWbyXPpIFAIii5vLuM_mS82ZKS6UWBG8ekJ4H7zFhPwTT0bOc8ant9nQV8hDTnkZPhxFajn1MmZre0evdkB9DGvLU_GFCX2T8ucPeIr00nfkVcOQG-kzfXl5pecK_kk_edBkP_8YDcvv94ma5Kq6uL9fLs6vCcs5UwZ21wla1kuM9TlUIjinlLCD3tQMmHROl4w0oBk0juOPQSmlZ0zJsnXT8gKxnXRfNRm9TeDJpr6MJ-k8hpntt0hBsh7pWHnjNAFBWwntlbG1QNFAaYJUQYtQ6nrW2KY6_5UFv4i714_m6lE1VS6X4RMFM2RRzTujftzLQkzF6ckFPLujZmHHk2zwS4vaf5n_x3722jo8</recordid><startdate>20230301</startdate><enddate>20230301</enddate><creator>Cutler, Sam E.</creator><creator>Giavalisco, Mauro</creator><creator>Ji, Zhiyuan</creator><creator>Cheng, Yingjie</creator><general>The American Astronomical Society</general><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-7831-8751</orcidid><orcidid>https://orcid.org/0000-0001-7673-2257</orcidid><orcidid>https://orcid.org/0000-0001-8551-071X</orcidid><orcidid>https://orcid.org/0000-0002-7031-2865</orcidid></search><sort><creationdate>20230301</creationdate><title>The Differential Assembly History of the Centers and Outskirts of Main-sequence Galaxies at z ∼ 2.3</title><author>Cutler, Sam E. ; Giavalisco, Mauro ; Ji, Zhiyuan ; Cheng, Yingjie</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3319-3dcc4c5697ffed95e0d199dc0e3f6d017d142d3809108843d30b77c18b1ebd7d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Astrophysics</topic><topic>Deposition</topic><topic>Galaxies</topic><topic>Galaxy evolution</topic><topic>Galaxy formation</topic><topic>Hubble Space Telescope</topic><topic>Iterative methods</topic><topic>Metallicity</topic><topic>Photometry</topic><topic>Red shift</topic><topic>Space telescopes</topic><topic>Spectral energy distribution</topic><topic>Spectroscopy</topic><topic>Star & galaxy formation</topic><topic>Star formation</topic><topic>Stars</topic><topic>Stars & galaxies</topic><topic>Stellar mass</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cutler, Sam E.</creatorcontrib><creatorcontrib>Giavalisco, Mauro</creatorcontrib><creatorcontrib>Ji, Zhiyuan</creatorcontrib><creatorcontrib>Cheng, Yingjie</creatorcontrib><collection>Institute of Physics Open Access Journal Titles</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cutler, Sam E.</au><au>Giavalisco, Mauro</au><au>Ji, Zhiyuan</au><au>Cheng, Yingjie</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Differential Assembly History of the Centers and Outskirts of Main-sequence Galaxies at z ∼ 2.3</atitle><jtitle>The Astrophysical journal</jtitle><stitle>APJ</stitle><addtitle>Astrophys. J</addtitle><date>2023-03-01</date><risdate>2023</risdate><volume>945</volume><issue>2</issue><spage>97</spage><pages>97-</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>We present a study of spatially resolved star formation histories (SFHs) for 60
z
∼ 2.3 main-sequence, star-forming galaxies selected from the MOSDEF spectroscopic survey in the GOODS-N field, with median stellar mass
log
(
M
⋆
/
M
⊙
)
= 9.75 and spanning the range
8.6
<
log
(
M
⋆
/
M
⊙
)
<
11.5
. Photometry is decomposed into a central and an outer spatial component using observed
z
F850LP
−
H
F160W
colors. The
Prospector
code is used to model spectral energy distributions for the center, outskirt, and integrated galaxy using Hubble Space Telescope/ACS and WFC3, Spitzer/IRAC, and ground-based photometry, with additional constraints on gas-phase metallicity and spectroscopic redshift from MOSDEF spectroscopy. For the low-resolution bands, spatially resolved photometry is determined with an iterative approach. The reconstructed SFHs indicate that the majority of galaxies with
log
(
M
⋆
/
M
⊙
)
<
10.5
are observed while their central regions undergo relatively recent (<100 Myr) bursts of star formation, whereas the outskirts have a smooth, quasi-steady SFH that gently increases toward the redshift of observation. The enhanced star formation activity of the central parts is broadly consistent with the idea that it is produced by highly dissipative gas compaction and accretion. The wide range of central densities and sizes observed in the sample suggests that, for the selected galaxies, such a process has started but is still far from being completed. The implication would be that selecting star-forming galaxies at cosmic noon frequently includes systems in an “evolved” evolutionary phase where the centers have recently started a burst of star formation activity that will likely initiate inside-out quenching in the next several hundred million years.</abstract><cop>Philadelphia</cop><pub>The American Astronomical Society</pub><doi>10.3847/1538-4357/acb5e9</doi><tpages>23</tpages><orcidid>https://orcid.org/0000-0002-7831-8751</orcidid><orcidid>https://orcid.org/0000-0001-7673-2257</orcidid><orcidid>https://orcid.org/0000-0001-8551-071X</orcidid><orcidid>https://orcid.org/0000-0002-7031-2865</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | The Astrophysical journal, 2023-03, Vol.945 (2), p.97 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_iop_journals_10_3847_1538_4357_acb5e9 |
| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Institute of Physics Open Access Journal Titles; Alma/SFX Local Collection |
| subjects | Astrophysics Deposition Galaxies Galaxy evolution Galaxy formation Hubble Space Telescope Iterative methods Metallicity Photometry Red shift Space telescopes Spectral energy distribution Spectroscopy Star & galaxy formation Star formation Stars Stars & galaxies Stellar mass |
| title | The Differential Assembly History of the Centers and Outskirts of Main-sequence Galaxies at z ∼ 2.3 |
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